We're always working to improve how sharing works at Dropbox. If you see a Share button next to your files on dropbox.com, then you have access to our new way to share. You will also see this new way to share on the Dropbox mobile apps and some versions of the Dropbox desktop app.

When you click the Share button, you can invite the people you want to collaborate with, and choose which permissions to grant them. Only people you explicitly share with are able to access these files.

Note: To accept an invitation to collaborate on shared files, the recipients must have Dropbox accounts tied to the email address you provided for them. Recipients that don't have Dropbox can create an account. Recipients with Dropbox under a different email can request access from a different email.